In a video obtained by E! Online, the young "Baby" singer is asked a series of questions about the cost of items, presumably by his mother, Pattie Mallette.
When asked how much a pizza costs, he replies, "Thirty-nine bucks."
"How much does a house cost?" the woman asks.
"Fifty-nine bucks," Bieber responds.
Hitting closer to the mark, he responds "Two dollars" when asked how much a toothbrush costs.